Does anyone know what the plastic snake outers are that run back on either side from the front? They're not mentioned in the instructions and they are right in the way of where I want to put the rudder servo. I intend to remove them but just want to check before I do anything stupid.

EDIT: I've worked it out They are snakes so that the rudder servos can be mounted at the front. I'm surprised this isn't mentioned. I've removed them and will be mounting the servos at the back.